Book-holder.



A. G. BAUER.

BOOK HOLDER.

grrmoumn FILED 0091.13, 1909.

967,877. Patented Aug. 23, 1910.

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AUGUST G. BAUER, OIE COLUMBUS, OHIO.

BOOK-HOLDER.

Specification of Letters Patent.

Patented Aug. 23, 1910.

Application filed October 13, 1909. Serial No. 522,387.

To all whom it may concern:

Be it known that 1, AUGUST G. BAUER, citizen of the United States,residing at Columbus, in the county of Franklin and State of Ohio, haveinvented certain new and useful Improvements in Book-Holders, of whichthe following is a specification.

My invention relates to the improvement of that class of book holderswhich are adapted to be detachably connected with the arms of chairs orthe projecting portions of desks, tables or other pieces of furniture.

The objects of my invention are to provide an improved construction ofbook holder having improved means for supporting a book in readableposition; to provide improved means for adjusting the various parts ofsaid holding device to diiferent positions and to produce certainimprovements the details of which will be more fully pointed outhereinafter. These objects I accomplish in the manner illustrated in theac companying drawing, in which Figure 1 is a rear elevation of myimproved book holder, Fig. 2 is a view partly in section and partly inelevation, the sectional portion of the View being taken on line w0a ofFig. 1, Fig. 3 is an enlarged transverse section on line g -g of Fig. 2,and, Fig. 1 is a plan View of the book holding and bracket plates.

Similar numerals refer to throughout the several views.

In carrying out my invention, I employ a suitable chair arm clamp 1,which is preferably in the nature of a C-clamp, as shown in the drawing,the lower arm of said clamp having a threaded opening formed therein,through which passes and with which engages a desirable form of clampingscrew 2, the head 2 of which is adapted to bear against the underside ofa similar parts chair arm 3 or other piece of furniture,

while the upper arm of the clamp engages the upper side of the member 3.In order to prevent injuring the surface of the furniture member withwhich the clamp is connected, I may provide the underside of the upperarm of said clamp and the upper side of the clamping screw head 2*, witha pad ding 1 of felt, leather or other yielding material.

In forming the clamp 1, I provide the upper arm thereof, with aprojection 1 in which is formed a vertical socket, as shown. This socketis adapted to receive the lower rounded pin-like bearing extension 5 ofan upwardly extending bar 5, said pin being adapted to be secured in itssocket in the desired position through the medium of a set screw 6. Theupper end of the vertical bar 5 has pivotally connected therewith oneend of a bar 7, while a similar bar 8 is also pivotally connected withthe lower portion of said upright bar 5. These bars 7 and 8 are retainedparallel one with the other and have their outer ends pivotallyconnected at 7 and 8 with the upper and lower ends of the transversehead 9 of a T-shaped supporting arm 9.

At the junction of the members 7 and 5, I pivot the upper end of acurved bar or rack segment 10, the latter having formed therein a zigzagslot 11, which extends throughout the greater portion of the length ofthe bar. Through this slot extends a pin 12 which projects from the rearface of the bar 8, said pin being adapted by engagement with one of theinternal teeth or shoulders formed as a result of the zigzagconstruction of said slot, to prevent the dropping downward of the bar 8and the members 7 and 9. It will be understood, however, that a downwardmovement of said frame members may be attained by swinging the segment10 out-.

ward and upward until the pin 12 is out of the path of engagement withthe teeth or shoulders of the slot.

Slidably mounted upon the supporting arm 9, is the lower portion of anupwardly projecting post 13, the latter being provided with an enlargedhead upon which is pivoted one end of a horizontal plate or bracket arm14. The outer and wider end portion of this bracket arm is formed atopposite points, with upper side hinge barrels lt through which passes ahinge rod 15. The outer ends of the hinge rod are j ournaled in roundedhinge members 16 which project from the lower portion of a booksupporting plate 16, said plate below said hinge members having anoutturned ledge 16*. Rigidly connected with the rear side of the plate16 is one end of a rearwardly extending and downwardly curved finger 17,the latter passing through an opening in the bracket arm'lt and alsopassing through an eye or loop termination 18 of a horizontal screw 18,the latter passing through an opening in an upturned bearing lip 14,-whichis formed with one side of the bracket arm 14:. The outwardlyextending threaded; stem of the screw 18 is provided with a thumb nut 19which when turned upward intoen'gage-L ment with the outer end of thelip or hook member- 1 1 resultsin moving the screw'181 outward and inlooking the eyeorloop termination 18 of the screw intofrictionalengagement with the finger 17.

' o By the employment of a setscrew 13 which passes through a threadedopening in the lower end of the post 13, said post 13 is clamped at thedesired point on the supporting arm 9. Adjacent to each end of the bookholding ledge 16 and on the underside 7 thereof, I secure one end of aspring leafholding'wire 20, these wires extending from their fasteningpoints toward each other and outward over the edge of the ledge, saidwires being so bent as to impart thereto a tendency of the free ends ofthe wires toward pressing inward against the face of the plate 16. Thesefree terminals of the wires are formed, as shown, with upright coilssuch asare indicated at 20*.

In utilizing my invention, it will be understood that an open book isdesigned to be supported upon the outturned ledge 16 of the plate 16,the back or cover members of the book bearing against said plate 16. Thebook as will be understood, is held in the open position by theengagement of the coiled spring terminals 20 with the bases of the pagesand when it is desired to turn a leaf of the book,

I these spring leaf-holding members are temporarily pressed outward andpermitted to engage'the outer edge of the'ledge. As will readily beseen, the angle at which the book is supported is dependent upon theposition of the finger 17 with relation to the bracket I arm .14 and byloosening the nut Y19 and thereby freeing the screw 18, said fingermaybe moved upward ordownward in the opening of said bracket arm. Inorder to provide for the desired elevation of the book supporting plate,it is obvious that the segment 10 may be swung upward to cause atemporary disengagement of the pin 12 from the teeth or shoulders ofsaid segment slot, thus permitting of the swinging of the parallel bars7 and'8 either up or down, with a consequent raising or lowering of thesupporting arm 9. By loosening the set screw 6, it is evident that, theentire supporting frame may be swung on the pivot 5*, thus permitting ofthe adjustment of the book support to a desirable position for use. ;-Itwill be understood that my improved book holding device may beconveniently employed in connection with chair arms,

desks or the projecting portions of other pieces of furniture.

From, the foregoing description, it will be seen that simpleand'efficient means are herein provided for accomplishing the objects of theinvention, but while the elements shown and described are well adaptedto serve the purposes for which they are intended, it is to beunderstood that the invention is not limited to the precise constructionset forth, but includes within its purview such changes as may be madewithin the scope of the appended claims.

What I claim, is

1. In a' book support, the combination with a clamping member and anupright bar pivoted therein, of two parallel bars pivotally connected attheir inner ends to said upright bar, one above the other, one of saidparallel bars being provided with a laterally-projecting pin, a toothedsegment pivotally connected at one end to said upright bar, the teeth ofthe segment being adapted 'to successively engage with said pin, a T-shaped supportingarm, the transverse member of said arm being pivotallyconnected at its ends to the outer ends of the parallel bars, and abook-holding member adj ustably mounted in said supporting-arm.

2. In a book holding device, the combination with a furniture clampingmember and a supporting frame comprising pivotal] y connected memberssupported from said clamp, of a book holding member comprising a platehaving an outturned ledge, an arm hinged to said plate and pivotallyconnected with said supporting frame, a curved finger extending fromsaid plate through an opening in said arm, and means for locking saidfinger in connection with said arm, said means comprising a membertransversely movable with relation to said arm, and a screw 'for movingsaid member, said finger also passing through said transverse member.

In testimony whereof I affix my signature in presence of two witnesses.

AUGUST G. BAUER.

